From ca0d92e68df0a0fe109db37043847fecd7044246 Mon Sep 17 00:00:00 2001
From: Kohei Takahashi <flast@flast.jp>
Date: Tue, 6 Oct 2015 21:29:02 +0900
Subject: [PATCH] R-value references are now container-wide requirements.

---
 .../fusion/container/generation/make_set.hpp  | 15 +++++++++++---
 include/boost/fusion/container/set/set.hpp    | 20 -------------------
 2 files changed, 12 insertions(+), 23 deletions(-)

diff --git a/include/boost/fusion/container/generation/make_set.hpp b/include/boost/fusion/container/generation/make_set.hpp
index 7f98532b..cd8519e5 100644
--- a/include/boost/fusion/container/generation/make_set.hpp
+++ b/include/boost/fusion/container/generation/make_set.hpp
@@ -19,6 +19,9 @@
 ///////////////////////////////////////////////////////////////////////////////
 
 #include <boost/fusion/support/detail/as_fusion_element.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+#include <boost/type_traits/remove_const.hpp>
+#include <utility>
 
 namespace boost { namespace fusion
 {
@@ -27,16 +30,22 @@ namespace boost { namespace fusion
         template <typename ...T>
         struct make_set
         {
-            typedef set<typename detail::as_fusion_element<T>::type...> type;
+            typedef set<
+                typename detail::as_fusion_element<
+                    typename remove_const<
+                        typename remove_reference<T>::type
+                    >::type
+                >::type...
+            > type;
         };
     }
 
     template <typename ...T>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
     inline typename result_of::make_set<T...>::type
-    make_set(T const&... arg)
+    make_set(T&&... arg)
     {
-        return typename result_of::make_set<T...>::type(arg...);
+        return typename result_of::make_set<T...>::type(std::forward<T>(arg)...);
     }
  }}
 
diff --git a/include/boost/fusion/container/set/set.hpp b/include/boost/fusion/container/set/set.hpp
index 0d93290b..8d5cc13b 100644
--- a/include/boost/fusion/container/set/set.hpp
+++ b/include/boost/fusion/container/set/set.hpp
@@ -95,41 +95,22 @@ namespace boost { namespace fusion
         set()
             : data() {}
 
-        template <typename Sequence>
-        BOOST_FUSION_GPU_ENABLED
-        set(Sequence const& rhs)
-            : data(rhs) {}
-
-#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
         template <typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         set(Sequence&& rhs)
             : data(std::forward<Sequence>(rhs)) {}
-#endif
 
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         explicit
         set(typename detail::call_param<T>::type ...args)
             : data(args...) {}
 
-#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
         template <typename ...U>
         BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         explicit
         set(U&& ...args)
             : data(std::forward<U>(args)...) {}
-#endif
 
-        template <typename U>
-        BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-        set&
-        operator=(U const& rhs)
-        {
-            data = rhs;
-            return *this;
-        }
-
-#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
         template <typename U>
         BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         set&
@@ -138,7 +119,6 @@ namespace boost { namespace fusion
             data = std::forward<U>(rhs);
             return *this;
         }
-#endif
 
         BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         storage_type& get_data() { return data; }